Articles | Volume 13, issue 3
The Cryosphere, 13, 927–942, 2019
https://doi.org/10.5194/tc-13-927-2019
The Cryosphere, 13, 927–942, 2019
https://doi.org/10.5194/tc-13-927-2019
Research article
18 Mar 2019
Research article | 18 Mar 2019

Resolving the influence of temperature forcing through heat conduction on rock glacier dynamics: a numerical modelling approach

Alessandro Cicoira et al.

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Cited articles

Arenson, L., Hoelzle, M., and Springman, S.: Borehole deformation measurements and internal structure of some rock glaciers in Switzerland, Permafrost Periglac., 13, 117–135, https://doi.org/10.1002/ppp.414, 2002. a, b, c, d, e, f, g, h, i, j, k, l, m, n
Arenson, L., Springman, S. M., and Sego, D.: The rheology of frozen soils, Appl. Rheol., 17, 12147-1, https://doi.org/10.3933/ApplRheol-17-12147, 2006. a
Arenson, L. U. and Springman, S. M.: Mathematical descriptions for the behaviour of ice-rich frozen soils at temperatures close to 0 C, Can. Geotech. J., 42, 431–442, https://doi.org/10.1139/t04-109, 2005a. a, b, c, d, e, f, g, h
Arenson, L. U. and Springman, S. M.: Triaxial constant stress and constant strain rate tests on ice-rich permafrost samples, Can. Geotech. J., 42, 412–430, https://doi.org/10.1139/t04-111, 2005b. a, b
Arenson, L. U., Johansen, M. M., and Springman, S. M.: Effects of volumetric ice content and strain rate on shear strength under triaxial conditions for frozen soil samples, Permafrost Periglac., 15, 261–271, https://doi.org/10.1002/ppp.498, 2004. a
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Short summary
Rock glacier flow varies on multiple timescales. The variations have been linked to climatic forcing, but a quantitative understanding is still missing. We use a 1-D numerical modelling approach coupling heat conduction to a creep model in order to study the influence of temperature variations on rock glacier flow. Our results show that heat conduction alone cannot explain the observed variations. Other processes, likely linked to water, must dominate the short-term velocity signal.